Line cooler



FIG. 1 is a front, bottom, left side perspective view of a line cooler showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a front, top, left side perspective view thereof;

FIG. 9 is a front, top, right side perspective view thereof; and,

FIG. 10 is a front, bottom, right side perspective view thereof.

The broken lines illustrate portions of the line cooler that form no part of the claimed design. 

CLAIM The ornamental design for a line cooler, as shown and described. 